Stop mechanism for graphophones



Patented Julyv 26, 1921.

bzmys E. 0. KLEMM. STOP MEcHANxsM FOR GRAPHQPHONES.

APPLICATION FILED JULY 15| 1919.

' E. O. KLEMM. STOP'MECHANISM FOR GHAPHOPHONES.

APPLICATION FILED JULY 15, 1919.vv

Patented July 26, 1921.

3 SHEETS-SHEET 3.

` E. o. KLEMM. STOP NIECHANISM FR GRAPHOPHONES.

APPLICATION FILED JULY 15, 1919. I 1,385,690. Patented July 26, 19.21.]

3 SHEETS-SHEET 2- UNITED s'rn'ras`v PATENT OFFICE. ,i

EDWIN O. iKLEMM, OF DAYTON, O,IIIO, ASSIGNOR TO KLEMM MANUFACTURING COM-PLNY, OF SAGINAW,` VMICIIIlSrAl.\T.

Ys'ror MECHANISM non GRAPHorHoNEs.

z Application led July 15,

To all w tom` t may concern.'

,Be it known thatv I, EDWIN O. KLnMM, a .citizen of the United States,residing at Dayton, inthe county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Stop Mecha-A nism forGraphophones, of which the following isa specification.

This invention appertains to the art of graphophones and involvesparticularly a certain novel controlling and stopping mechanism for suchmachines.

An important feature of the invention resides in the provision of stopmechanism susceptible of manual or automatic action at 'the' will of theoperator of the sound producing machine.

Afsecond important 'feature of improvement devised by me resides incertain trip and detent devices employed in my mechanism whereby thetime ofv operation of the machine may be varied to accommodate for theproduction of records of different sizes.-

Another highly essential object of my invention has been to deviseprovisions such that the controlling of the starting and stopping of thegraphophone is made apart of the exclusive function of the tone orreproducer arm. In other words I have so designed'the stopping device,and parts intermediate the said devicefand the reproducer arm, that byproper manipulation of the latter the motor by which the record carrierorv table is actuated may be caused to startthe operation of the saidcarrier; other manipulation 0f said arm may be caused to predeterminethe point on the record, whether at the end or any other part of therecord,

where the stopping ofV reproduction will takoplace; and the customarymovement onv manipulation of the tone arm may be employed to carry it tothe proper point for deposit on the record to start the reproduction.Obviously the embodiment in the tone arm itself of the starting andstopping control functions,A respectingreproduction of records. ofdifferent. sizes by the graphophone, is a very practical desideratum inthe art because runder such conditions the necessity of a separatemanual or other device to control the starting, at least, is

avoided. I, therefore, deem this part of my.

invention broadly new and my claims therefore, are to be read not ascoveringthe speciic instrumcntalities by which I accom.

Specification of Letters .Patent Patented uly 26", 192,1.

1919. serial No. 310,910. A

l sembled, land absolutely positive as `,regards adjustments andoperation.

A complete understanding of the invention including the advantages forits use in practice, will be had on study of the following descriptioninconjunction with the annexed drawings, in which Figure l isa View inelevation, with the reproducer'arm and trip shown .partially in section,illustrating certain conventional graphophone devices withvthe'improvements hereof applied thereto. v

VFig. 2 is a fragmentary top plan-view bringing out more clearly thearrangement of the shaft, brake and other controlling parts. j q

Fig. 3 is adetachedperspective-view showing particularly the trip,detent, and brake elements forming the, essential parts of .myinvention, the brake arm and detent parts being 'shown in dotted linesas when the machine is in operation, in full'lines as Apositioned duringthe preliminaryadjustment of the trip. .f g

Fig. 4 is a fragmentary sectional view on the line P-4 of Fig. 1.

Fig. 5 is a corresponding' sectional view` the detent arm has been movedtoa position for the starting of the graphophonei Fig. 7 is aperspective view of a modified adaptation of the invention.v

Fig. 8 is a sectional view, partly inele'va tion, of said modification.v Fig. 9is a sort of diagrammatic view" to show the eculiar movement ofthe reproducer arm 1n controlling stopping and starting of the motor.

In the drawings and the description forming the specification hereof,similar reference characters refer to similar parts throughout.

Taking up the general construction of the machine to which my inventionis applied, it may be noted that said machine comprises a suitable baseA which may be a portion of acabinet of one of many different types. Tothe under side of said base A is attached the customary motor frame, themotor of which is adapted to drive the spindle C which supports andturns the record table or platform D. The reproducerarm E withitsreproducer F arelargely of the common type in use, the arm, beingslightly modified as hereinafter set forth to provide a special mountingfor the trip means of my invention.'A

The starting and stopping ofthe motor, not shown, is controlled in whatis largely the known manner, by brake means arranged to coact with thedisk 1 of the governor 2.

The foregoing sets forth those parts which are largely conventional, andthe parts which comprisemy invention will now be described. j Y

.Attached to the lmotor frame B isa supporting plate seen best in Fig.1,' the ends peculiar form being projected laterally as shown at 6*? anddownwardly as shown in 6b, for a purpose tobe shortly disclosed. On theshaft 4 is secured, preferablydetachably, the brake arm 7 having theshoe 8 at its free end beneath and adapted to engage the n disk 1 of thegovernor 2.

"j plate 3 has a lateral projection u is connected' Ythe coiled spring10.

@ne of the extensions, at the end of the 9 with which The spring -10 is-likewise-4 connected with the upper portion of thearm .6 as shownat10', and the normal actionof the spring 1() isl to lrock the shaft 4.so-as to causeA engagement of the shoe 8 with the governor disk 1.' Iutilize two means for maintaining the.

brake device inactive in relation to the governor 2, one means formmgvapart-.of the automatic controlling devices for the stop orgbrakemechanism, and the other fmeans adapted yto render the means just abovereferred to inoperativeV to perform its function, and to holdthe brakevdevice inactive until 'restoredv to activity by manipulation of certainparts by the operator. Y l

iTaking uptheautomatic means first it is notable that the reproducer farm E is threaded nearV its point of support as shown at 11 and thesocket member 12 of la trip of said plate being out turned and having 13is likewise threaded to screw upon said threaded portion 11 ofthereproducer arm. The trip 131thus has a friction connection Awith thearm E and the ,trip 13 is bent downwardly and laterally to form the arm14 arranged to coact with the detent arm 6. The. mode of operation yofthe parts just set forth is as follows:

It should be borne in mind that the lever or arm 5 of the shaft 4extends upwardly` through a slot' 15 in the'base A and said lever 5 ismovable by the hand and adapted to occupy 8 positions shown in full anddotted lines in F ig, 4. Assuming that a' record has been placed uponthe table D, to adjust the mechanism forthe playing of said record andthe stopping .of the machine at the end of the record, the operatorgrasps the reproducer arm E and shifts the .saine with a motion of thereproducer from the center of the table D outward. The reproducingneedle or stylus is then deposited on the last sound `groove of therecord. The

motor being maintained out of action by theV engagement ofshoe 8 withgovernor disk 1, the parts are now in substantially the positions shownin Figs. 1 andl 3. That is to say, Vthe described movement of thereproducer arm has brought the trip arm '14 against the portion 6b ofthe detentarm 6,1

and ysaid arm 14 by slight turning'ou the producer arm E is thereforelocated in the.

position itA will occupy when the repro'-VV ducer reachesthexend of therecord.l To start the machine, the operatorV pulls, the lever 5 from thestopping position occupied by it, as shown in Fig. 3, and designated ein Fig. 4, to its starting position designated j .ein Fig.' 4. Themovement of the leverf5 in this manner disengages the brake means fromthe governor disk 1, as shown by dotted les' l-ines in Fig; 3, andlowers the portions 6b ,Y

and (Stof the detent arm 6, also as shown in Fig'.' The operator holdsthe lever 5v in the starting position m aforesaid, momentarily, and thenshifts the reproducer arm .Tl toV carrythe reproducing needle to thefirst or outer groove and deposits the needle there.

Thelever 5, may now bereleased andthef spring 10 will act to lift thehorizontal portionGa. off the. arrn` 6 up against the under side of thetrip arm 14. In this way the' detent arm 6 is prevented from tiltingtoits normalstopping position, the. brakesboe S- being thus detained orpreventedV from en#V gagementwith the disk 1, so long as the arm14engages the portion' G of the'arin- 6. ObviOusly, however, .after the,reproducer has traversed therecord, on coming. to theien'd of therecord, the trip 14 which moves with the reproducer, on account of itsfrictional con nection, passesoif of the portion 6, so that the spring10 acts on the.` arm (i to rock said arm tothe shaft 4, to raise theshoe 8 into stopping engagement, with Vthe governor During the time whenthe soundrecordis` being played, the lever occupies the position shownat y in dotted lines, in Fig. 4, the shaft 4 being partially tilted itsstopping position.

In Fig. 6, the full and dotted line posi.v tions of the arm 6 and itsportion 6a and 6b,

correspond with the positionsof Athelever,

- as shown in Fig. 5, and the several positions of the arm 6 are,therefore, designated ae', y and e.

Should it be desired to maintain the automatic stopping devices out ofaction, I resort to the simple expedient of-moving the lever 5 to theposition w, of Fig. 5 and temporarily locking said lever in suchposition by a. hook 16. f

If the operator should desire to employ the stop mechanism after themanner of the usual hand controlled stop mechanisms of graphophones, thehook 16'is used to maintain the lever 5 at its starting position, orwith the brake released until stopping of the record is necessary,whereupon the lever 5 isl unhooked. If ont unhooking the lever 5 thereproducer F has traveled sulliciently far vto carry the arm 14 off ofthe portion 6 of the detent arm 6, obviously the spring 10'will causethe application of the brake 8 and stopping of the motor. It maybe,however, that when the operator wants to stop the machine, and releasethe lever 5, .the trip arm 14 may still engage the portion Ga of the arm6. Under f these conditions, the operator simply carries the reproducerarm E to about the center of the record to'makesure that the trip 13-does' noti coact with the part 6EL to' prevent the application of thebrake.

The advantages ofmy mechanism will be apparentwhen it is recognized thatI util! izeabout six parts only in the construction yof my devices andall these parts are simply formed, adapted tobe cheaply made, and

maybe very easily put together and applied to popular types of machines.vInstead of the screw thread connection of the trip collar 12 with thereproducervarm E any suitable frictional connection may be employed.

F igs.'7 to 9 inclusiveshow'the modified adaptation of theinvention/wherein'I -utilize the tone-arm E in peculiar cooperation withthe detent arm 6 for causing the starting of the movement of the'carrier on table D. It willr be remembered that according` to theconstruction before described` herein, the starting of themotorisaccomplished through the manipulation of the lever. By my lmodified.construction Iam enabled 'to back from' dispense with the lever 5entirely. In fact, y

`the first form ofmy invention set forth herein, have like .referencecharacters. -I might note, however, that the reproducer arm E accordingtomy modified construction should preferably be one of thev type havingthe usual universal joint connection E with the base A, shown in Fig. 3.I have.

illustrated the trip 13 with its lateral portion 14 in a form whichfrietionally engages the tone arm near the universal joint E. This tripforms an invention separate entirely from this application. The ti-ip 13works practically the same as' the trip 13 pie viously described. Y p

Understanding the construction of the parts in a modified form as perthe slight d ifferences just set forth,-it is notable that the followingpeculiar operation of the parts for controlling the stopping point andstarting of the carrier D and the record thereon may be obtained.Assuming that the reproducer needle occupies a position at rest about atthe center of the record, and referring to Fig. 9, to adjust thereproducer for stopping of the record at the end of the record brake,the operator will grasp the reproducer arm E, elevate the same slightlyand shift the arm outwardly, say from A toB according to thediagrammatic illustration of Fig.

9. `In this way the member 14'of the trip. 13 is caused to engage thepart '6b of the den j Thereafter the Varm E raised and caused totraverse a vpath sonie- Y thing like that shown from B to C in Fig.9,.the member 14in this way being caused to depress the portion 6a ofthe arm G,y in such a manner as to disengage the brake-slice 8 from thegovernor disk 1.` The operation of the carrier D is thus started by lthemotor when released in this manner. the operator merely shifts thereproducer say from the point C to the point D as (lesig'-,

nated in F ig. 9, assuming-the point IY to be;

the position at which the arm E should be deposited for commencement ofreproduction of the record. v i' I contemplate that there may be twovariations of the mode of operation just described. In the iirst'placethe adjustment of the reproducer arm E preliminarily to control thestopping point may be yat any point to bring the needle to any point inthe length ofthe record during the preliminary outward adjustment 'andbefore the raising movement characterized as B tojC` Lin-Fig. 9commences. yAgaiiutheop- Thereafter i erator may of course, deposit theneedle at anypoint in the length of the record foi starting; he does nothave to deposit it at the outer end of the track of the record.

lObviously Where the tone arm E has a universal joint connection Withthe base A, the mode of operation just set forth may be used with theconstruction of detent arm 6, brake parts, and lever 5, shown clearly inFig. 3 under which conditions moreover the arm Exor the member 5 may beemployed to controlv starting, at the option of the user of the machine.However, the evident simplicity of control obtained by me aecording tomy construction in Figs. 7 to 9, is a great advantage from practical andcommereialvievv points owing to both simplic- Y ity of structure andoperation.

Having thus described my invention'what I claim as new is 1. Graphophonemechanism comprising in combinatiom'a record carrier and a reproducer totraverse a record on said carrier, drivingV mechanism for the carrier,stop means for the driving mechanism, including a brake member andaspring to render lsaid member effective., amember to manually operatethe brake, and means to lock said member in a predetermined position.

2. Graphophone mechanism comprising in combination,- a record carrierand a reproducer to traverse a record on said carrier, driving mechanismfor the carrier, stop means for the driving mechanism', including a'brake member and a spring to render said member effective, a lever toVmanually operate the brake, and means to lock vthe lever in a vpositionholding the brake member inactive. v 4 3. Graphophone mechanismcomprising in combination, a record carrier and a reproducer to traverseVa-record on said carrier, driving mechanismy for the carrier, stopmeans for the driving mechanism, includingvv a brake member, anarm'ycarrying the reproducer, a trip on the reproducer arm movable with andindependently thereof,. and a detent connected with the brake member tocontrol the operativeness thereof, said detent embodying an arm having aportion to engage and cause movement of the trip relativelyto the arm,and a second portion,

to engage the tripV and to be restrained from vmovement by the trip, andspring means to move the detent arm when the restraining infiuence ofthe trip is removed therefrom. i' l 4. Graphophone mechanism comprisingin combination, a record carrier anda reproducer to traverse a record onsaid carrier,

driving mechanism for the carrier, stop.

means lfor the driving mechanism, comprising a.V rock shaft, a lever armon said shaft to manipulate it, a brakememb'er lcarried by theishaft, adetent arm on said shaft to" control the'action-of-thevbrake member, and

a trip operable `by the reproducer and adapt--` ed to coaet with thedetent arm.

5. Graphophone mechanism comprising in ing a rock shaft, a lever arm onsaid shaft. to manipulate it, a brake member carried by the shaft, adetent arm on said shaft to control the action of the brake member, av

trip movable by the reproducer, and; adapted to Vengage the vdetent arm,and spring means to maintain eoaction of the tripand detent arm.

maintain eoaction of the trip Vand detent and to shift the shaft toapplyA the brake member for stopping when the trip is disengaged fromthe detent arm.

7. Graphophone mechanism comprising'in combination, a record carrier anda reproducer toy traversea record on said carrier,

driving mechanism for the carrier, stop` means for the d-rivingmechanism,'compris ing a rock shaft, a lever armen said shaft tomanipulate-it, Va brake member `carried by the shaft, a detent armon-said shaft':to control the action of the brake member, a

trip operable by the reproducer andadapted to coaet With the detent arm,and a lockfor 'holding' the shaft in a position preventing cooperationof thedetent arm and trip.

8. Graphophone mechanism comprising in combination, a record carrier anda reproducer to traverse a record on said carrier, driving mechanism forthe carrier, vstop means for the driving mechanism, comprising a rockshaft, a lever arm on said shaft to manipulate it, Va brake membercarried` by the shaft, a detent arm-on said shaft to control the actionof the brake member, Y, a trip operable bythe reproducer and adapted tocoaet with Vthe detent arm, and a lock-to hold the lever arm inapositionpreventing cooperation of the trip and detent arm.

9. Graphophone mechanism comprising in' combination, a vrecordcarriergand a reproducer to traverse a record on: said carrier, driving`mechanism for lthe carrier, stop means forthe driving mechanism,comprising a rock shaft, a brake member on said shaft,

a detent armen saidv shaft, a reproducer arm, Ia trip movable with andindependently 6. Graphophone mechanism comprising in combination, arecord carrier and arepr'o-` izo of the reproducer arm, andy manualmeans to hold said shaft in a position maintaining the brake memberineffective.

yl0. Graphophone mechanism comprising in combination, a record carrierand a reproducer to traverse a record on said carrier, driving.mechanism for the carrier, stop means for the driving mechanism,comprising a rock shaft, a brake member'on said shaft, Vadetent arm onsaid shaft, a reproducer arm, a trip movable With and independentlyofthe reproducer arm, manual means to hold said shaft in a positionmaintaining the brake member ineffective and a locking device to holdthe shaft in said position maintaining the brake means ineffective.

1l. Graphophone mechanism comprising in combination, a record carrierand a reproducer to traverse a record on said carrier, driving mechanismfor the carrier, stop means for thevdriving mechanism7 comprising a rockshaft, a brake member on said shaft. a detent arm on said shaft, areprodncer arm, a trip movable With and independently of the reproducerarm, manual means to hold said shaft in a position maintaining the brakemember ineffective and a locking device to engage said manual means tohold the same in a predetermined position.

l2. Graphophone mechanism comprising coact yWith the detent arm, aspring for con-Y.

trolling cooperation of the detent arm and trip, and manual means tointerfere With the action of the spring.

13. Graphophone mechanism comprisingl in combination, a record carrierand' a reproducer to traverse arecord on said cai'- rier, drivingmechanism for the carrier, stop i means for the driving mechanism,comprising a rock shaft, a lever arm on said shaft to manipulate it, abrake member carried by the shaft, a detent arm on said shaft to controlthe action of the brake member,- a

`trip operable by the reproducer and adapted to coact with the detentarm,said detent arm having a bent end portion to abut and move the triprelatively to the reproducer, and

having another bent portion to hold the shaft in a certain positionduring movement of the reproducer While traversing the record.

In testimony whereof I affix my si nature.

EDWIN O. KL 4M`M.

